reaction of metal ions in aqeuous solution

Question 1

what iron as an aqueous iron(ii)
color change too

Answer 1

[Fe(H2O)6]2+ (aq)
green solution

Question 2

action of NaOH on iron(ii)

Answer 2

Fe(H2O)4(OH)2 (s)
green ppt goes brown on standing in air

Question 3

action of NH3 (aq) on iron (ll)

Answer 3

Fe(H2O)4(OH)2
green ppt goes brown on standing in air

Question 4

action of Na2CO3 (aq) on iron (ll)

Answer 4

FeCo3 (s)
green ppt

Question 5

whats copper (ll) as an aqeuous ion

Answer 5

[Cu(H2O)6]2+(aq)
blue solution

Question 6

action of NaOH/NH3 on copper (ll)

Answer 6

Cu(H2O)4(OH)2(s)
blue ppt

Question 7

Excess NH3 on copper (ll)

Answer 7

[Cu(H2O)2(NH3)4]2+(aq)
deep blue solution